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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in the United States

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All countries

17,009 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

States

17,009 results

CompareNameNative sizeYear
Erie Co Huron Basin WWTPHuron2 MGD (million gallons per day)2022
Lancaster Upper Hocking WWTPLancaster2 MGD (million gallons per day)2022
Licking Co Buckeye Lake SD #1Buckeye Lake2 MGD (million gallons per day)2022
Louisville WWTP & Sewer SystemLouisville2 MGD (million gallons per day)2022
Port Clinton WWTP & Sewer SystemPort Clinton2 MGD (million gallons per day)2022
Upper Sandusky WWTP & Sewer SystemUpper Sandusky2 MGD (million gallons per day)2022
MCALESTER EAST WWTMcalester2 MGD (million gallons per day)2022
TULSA LOWER BIRD CREEK WWTCatoosa2 MGD (million gallons per day)2022
ANADARKO PWA WWTAnadarko2 MGD (million gallons per day)2022
WEATHERFORD WWTWeatherford2 MGD (million gallons per day)2022
CANBY STPCanby2 MGD (million gallons per day)2022
BAKER CITY WWTPBaker City2 MGD (million gallons per day)2022
WHITEMARSH TWP AUTH STPLafayette Hill2 MGD (million gallons per day)2022
UPPER MONTGOMERY JOINT AUTHPennsburg2 MGD (million gallons per day)2022
MOON TWP MA - FLAUGHERTY RUNCoraopolis2 MGD (million gallons per day)2022
FORT MILL WWTPFort Mill2 MGD (million gallons per day)2022
City of Clemson, Pendleton/Clemson WWTPPendleton2 MGD (million gallons per day)2022
MCKENZIE STPMc Kenzie2 MGD (million gallons per day)2022
MUNFORD LAGOONMunford2 MGD (million gallons per day)2022
T.A.S.S. Niles Ferry WWTFVonore2 MGD (million gallons per day)2022
WAVERLY WWTPWaverly2 MGD (million gallons per day)2022
White House WWTPWhite House2 MGD (million gallons per day)2022
KINGSTON STPKingston2 MGD (million gallons per day)2022
Martinez IV WWTPSan Antonio2 MGD (million gallons per day)2022
Hutto South WWTPHutto2 MGD (million gallons per day)2022
Hereford WWTPHereford2 MGD (million gallons per day)2022
Vernon WWTPVernon2 MGD (million gallons per day)2022
Northeast WWTPEl Paso2 MGD (million gallons per day)2022
Alamo WWTPAlamo2 MGD (million gallons per day)2022
Pharr Reuse FacilityPharr2 MGD (million gallons per day)2022
San Juan Reuse FaciltySan Juan2 MGD (million gallons per day)2022
Manadas Creek WWTPLaredo2 MGD (million gallons per day)2022
Sombrellito Creek WWTPLaredo2 MGD (million gallons per day)2022
Kickapoo Reservation STPEagle Pass2 MGD (million gallons per day)2022
West 6th Street WWTPRoma2 MGD (million gallons per day)2022
INGLESIDE STPIngleside2 MGD (million gallons per day)2022
Lynn's Bayou WWTPPort Lavaca2 MGD (million gallons per day)2022
Little Chocolate Bayou WWTPPort Lavaca2 MGD (million gallons per day)2022
Synder WWTPSnyder2 MGD (million gallons per day)2022
New Lamesa WWTPLamesa2 MGD (million gallons per day)2022
Lick Creek WWTPCollege Station2 MGD (million gallons per day)2022
Mexia WWTPMexia2 MGD (million gallons per day)2022
Granbury WWTP - (Southeast)Granbury2 MGD (million gallons per day)2022
MarlinMarlin2 MGD (million gallons per day)2022
Cottonwood Branch WWTPLittle Elm2 MGD (million gallons per day)2022
Texarkana - Wagner Creek WWTPTexarkana2 MGD (million gallons per day)2022
Texarkana - Northwest WWTPTexarkana2 MGD (million gallons per day)2022
Southside WWTP - HendersonHenderson2 MGD (million gallons per day)2022
Commerce WWTPCommerce2 MGD (million gallons per day)2022
Mineola WWTPMineola2 MGD (million gallons per day)2022
Atlanta WWTPAtlanta2 MGD (million gallons per day)2022
City of Crockett Northside WWTP #1Crockett2 MGD (million gallons per day)2022
Southwest Environmental CenterPearland2 MGD (million gallons per day)2022
Far Northwest WWTPPearland2 MGD (million gallons per day)2022
Rosenberg WWTP #1aRosenberg2 MGD (million gallons per day)2022
BACLIFF STPBacliff2 MGD (million gallons per day)2022
Northeast WWTP - BaytownBaytown2 MGD (million gallons per day)2022
Clinton Park WWTPHouston2 MGD (million gallons per day)2022
Northborough WWTPHouston2 MGD (million gallons per day)2022
Willowbrook Regional WWTPHouston2 MGD (million gallons per day)2022
West University Place WWTPHouston2 MGD (million gallons per day)2022
Treschwig Regional WWTPSpring2 MGD (million gallons per day)2022
Williamsburg Regional WWTPKaty2 MGD (million gallons per day)2022
Southern Montgomery Co MUDSpring2 MGD (million gallons per day)2022
Bammel WWTPHouston2 MGD (million gallons per day)2022
Barwood WWTPHouston2 MGD (million gallons per day)2022
Lincoln Green WWTPHouston2 MGD (million gallons per day)2022
Langham Creek UD WWTPHouston2 MGD (million gallons per day)2022
NEW CANEY STPNew Caney2 MGD (million gallons per day)2022
PRAIRIE VIEW A&M STPPrairie View2 MGD (million gallons per day)2022
HYRUMHyrum2 MGD (million gallons per day)2022
HEBER VALLEY SSDMidway2 MGD (million gallons per day)2022
MOABMoab2 MGD (million gallons per day)2022
Perry City WastewaterBrigham City2 MGD (million gallons per day)2022
SANTAQUINSantaquin2 MGD (million gallons per day)2022
TREMONTONTremonton2 MGD (million gallons per day)2022
Burlington North End WWTFBurlington2 MGD (million gallons per day)2022
TAZEWELL WWTP & COLLECTION SYSTEMTazewell2 MGD (million gallons per day)2022
CONAWAY WWTP & INTERCEPTOR SYSVansant2 MGD (million gallons per day)2022
COLONIAL BEACH STPColonial Beach2 MGD (million gallons per day)2022
CLIFTON FORGE STPClifton Forge2 MGD (million gallons per day)2022
ROCKY MOUNT S.T.P.Rocky Mount2 MGD (million gallons per day)2022
WOODSTOCK STPWoodstock2 MGD (million gallons per day)2022
STRASBURG STPStrasburg2 MGD (million gallons per day)2022
FRANKLIN SEWAGE TR PLANTFranklin2 MGD (million gallons per day)2022
BEDFORD STPBedford2 MGD (million gallons per day)2022
PARHAM LANDING STPWest Point2 MGD (million gallons per day)2022
REMINGTON REGIONAL STPRemington2 MGD (million gallons per day)2022
ASHLAND WWTPAshland2 MGD (million gallons per day)2022
WILDERNESS WWTPLocust Grove2 MGD (million gallons per day)2022
SELAH S/T FACILITYSelah2 MGD (million gallons per day)2022
LIBERTY LAKE STPLiberty Lake2 MGD (million gallons per day)2022
Martin Way Reclaimed Water PlantLacey2 MGD (million gallons per day)2022
RONCEVERTE WWTPRonceverte2 MGD (million gallons per day)2022
NEW LONDON WWTPNew London2 MGD (million gallons per day)2022
PORTAGE WWTPPortage2 MGD (million gallons per day)2022
PRAIRIE DU CHIEN WWTPPrairie Du Chien2 MGD (million gallons per day)2022
UNION GROVE WWTPUnion Grove2 MGD (million gallons per day)2022
Live Oak WWTFLive Oak1.98 MGD (million gallons per day)2022
WOOD DALE STP NORTHWood Dale1.97 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.